J 2014

High-Energy Chemistry of Formamide: A Simpler Way for Nucleobase Formation

FERUS, Martin; Regina MICHALČÍKOVÁ; Violetta SHESTIVSKÁ; Jiří ŠPONER; Judit ŠPONEROVÁ et. al.

Basic information

Original name

High-Energy Chemistry of Formamide: A Simpler Way for Nucleobase Formation

Authors

FERUS, Martin; Regina MICHALČÍKOVÁ; Violetta SHESTIVSKÁ; Jiří ŠPONER; Judit ŠPONEROVÁ and Svatopluk CIVIŠ

Edition

Journal of Physical Chemistry A, Washington DC, American Chemical Society, 2014, 1089-5639

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10403 Physical chemistry

Country of publisher

United States of America

Confidentiality degree

is not subject to a state or trade secret

References:

Impact factor

Impact factor: 2.693

RIV identification code

RIV/00216224:14740/14:00075655

Organization unit

Central European Institute of Technology

UT WoS

000330610300007

EID Scopus

2-s2.0-84893445507

Keywords in English

HIGH-POWER LASER; TRANSFORM EMISSION-SPECTROSCOPY; INDUCED DIELECTRIC-BREAKDOWN; EARTHS EARLY ATMOSPHERE; EVALUATED KINETIC-DATA; THERMAL-DECOMPOSITION; PREBIOTIC SYNTHESIS; INFORMATIONAL POLYMERS; PROPELLANT COMBUSTION; CHEMICAL EVOLUTION

Tags

International impact, Reviewed
Changed: 10/2/2015 17:25, Martina Prášilová

Abstract

In the original language

The formation of nucleobases from formamide during a high-energy density event, i.e., the impact of an extraterrestrial body into the planetary atmosphere, was studied by irradiation of formamide ice and liquid samples with a high-power laser in the presence of potential catalysts. FTIR spectroscopy, time-resolved emission spectroscopy, and GC-MS were subsequently used to monitor the dissociation of this molecule into stable molecular fragments (HCN, H2O, HNCO, H-2, CO, and NH3) and unstable species (HNC, center dot CN, and center dot NH). The kinetic and thermodynamic models of the high-energy density event molecular dynamics have been suggested together with the reaction routes leading from the dissociation products to the nucleobases. In addition, using theoretical calculations, we propose a simple new reaction pathway for the formation of both pyrimidine and purine nucleobases involving center dot CN radical chemistry

Links

ED1.1.00/02.0068, research and development project
Name: CEITEC - central european institute of technology